Guangzhou is bigger than Shenzhen, which is a municipality directly under the Central Government of Guangzhou Province. Shenzhen has a total area of 1997.47 square kilometers. Guangzhou has a total area of 7,434 square kilometers and governs 11 municipal districts. Shenzhen is one of the four first-tier cities, a city under the jurisdiction of Guangdong Province, a national regional central city and a megacity, a national economic center and an international city, a national innovative city, an international science and technology industry innovation center, a global ocean centre city, an international comprehensive transportation hub, one of the four central cities in Guangdong-Hong Kong-Macao Greater Bay Area and one of the three national financial centers. Shenzhen is located in the south of Guangdong, on the east bank of the Pearl River Estuary, separated by a river, bordering Daya Bay and Dapeng Bay in the east, the Pearl River Estuary and Lingdingyang in the west, Shenzhen River in the south and Dongguan and Huizhou in the north. Geography of Guangzhou Guangzhou is a hilly region, with high terrain in the northeast and low terrain in the southwest, with mountains facing the sea in the back, hilly and mountainous areas with concentrated forests in the north, the highest peak of which is the paradise top at the junction of Conghua City and Longmen County in the north, with an altitude of 1210 meters. The northeast is a middle-low mountain with Baiyun Mountain called &”;City Lung&”;; The central part is a hilly basin and the southern part is a coastal alluvial plain, which is an integral part of the Pearl River Delta. Hydrological Features Guangzhou is located in the south water-rich area, with developed river systems, numerous rivers (surges) and a vast water area. There are 22 rivers with rainfall collection area over 100 square kilometers, and 1,368 rivers with river width over 5 meters, with a total length of 5,597.36 kilometers and a river density of 0.75 kilometers per square kilometer, which constitutes a unique cultural feature of Lingnan water town.